168 lines
4.7 KiB
C++
168 lines
4.7 KiB
C++
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struct hid_class_descriptor {
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u8_t bDescriptorType;
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u16_t wDescriptorLength;
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} __attribute__ ((packed));
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struct hid_descriptor {
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u8_t bLength;
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u8_t bDescriptorType;
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u16_t bcdHID;
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u8_t bCountryCode;
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u8_t bNumDescriptors;
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struct hid_class_descriptor desc[1];
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} __attribute__ ((packed));
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void create_hid_mouse(udev_t *dev, endpoint_descr_t *en_d);
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bool init_hid(udev_t *dev)
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{
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interface_descr_t *interface;
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struct hid_descriptor *hds;
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struct hid_class_descriptor *hidclass;
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u8_t *dptr = (u8_t*)dev->conf;
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int i=0, j=0;
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dbgprintf( "init hid device\n");
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dptr+= dev->conf->bLength;
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// for(i = 0; i < dev->conf->bNumInterfaces; i++)
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// {
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interface = (interface_descr_t*)dptr;
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dptr+= interface->bLength;
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dbgprintf("interface %d\n\n"
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"bLength %d\n"
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"bDescriptorType %d\n"
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"bInterfaceNumber %d\n"
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"bAlternateSetting %d\n"
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"bNumEndpoints %d\n"
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"bInterfaceClass %d\n"
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"bInterfaceSubClass %d\n"
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"bInterfaceProtocol %d\n"
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"iInterface %d\n\n",
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i+1,
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interface->bLength,
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interface->bDescriptorType,
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interface->bInterfaceNumber,
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interface->bAlternateSetting,
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interface->bNumEndpoints,
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interface->bInterfaceClass,
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interface->bInterfaceSubClass,
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interface->bInterfaceProtocol,
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interface->iInterface);
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hds = (struct hid_descriptor*) dptr;
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dbgprintf("hid descriptor\n\n"
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"bLength %d\n"
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"bDescriptorType %d\n"
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"bcdHID %x\n"
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"bCountryCode %d\n"
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"bNumDescriptors %d\n",
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hds->bLength,
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hds->bDescriptorType,
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hds->bcdHID,
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hds->bCountryCode,
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hds->bNumDescriptors);
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for(j=0; j < hds->bNumDescriptors; j++)
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{
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dbgprintf("bDescriptorType %d\n"
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"wDescriptorLength %d\n",
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hds->desc[j].bDescriptorType,
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hds->desc[j].wDescriptorLength);
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};
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dptr+= hds->bLength;
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endpoint_descr_t *ep;
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ep = (endpoint_descr_t*)dptr;
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dbgprintf("\nendpoint\n\n"
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"bLength %d\n"
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"bDescriptorType %d\n"
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"bEndpointAddress %d\n"
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"bmAttributes %d\n"
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"wMaxPacketSize %d\n"
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"bInterval %d\n",
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ep->bLength, ep->bDescriptorType,
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ep->bEndpointAddress, ep->bmAttributes,
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ep->wMaxPacketSize, ep->bInterval);
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dptr+= ep->bLength;
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if( interface->bInterfaceProtocol == 2)
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create_hid_mouse(dev, ep);
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// }
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return true;
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};
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bool mouse_handler(udev_t *dev, struct tag_request *rq)
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{
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td_t *td;
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qh_t *qh;
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td = rq->td_head;
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if( (td->status &0x7FF)==rq->size-1)
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{
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struct boot_packet *pkt;
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pkt = (struct boot_packet *)rq->data;
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SetMouseData(pkt->buttons, pkt->x, -pkt->y, -pkt->z, 0);
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};
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td->status = TD_CTRL_ACTIVE | TD_CTRL_IOC | dev->speed;
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td->token ^= DATA1;
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u32_t efl = safe_cli();
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list_add_tail(&rq->list, &dev->host->rq_list);
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qh = dev->host->qh[6];
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qh->qelem = rq->td_head->dma;
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mb();
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safe_sti(efl);
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return true;
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};
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void create_hid_mouse(udev_t *dev, endpoint_descr_t *en_d)
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{
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request_t *rq;
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endp_t enp;
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addr_t address;
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addr_t size;
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u32_t toggle;
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void *packet;
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td_t *td;
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qh_t *qh;
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static u16_t __attribute__((aligned(16)))
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req_set_conf[4] = {0x0900,0x0001,0x0000,0x0000};
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if( !ctrl_request(dev, req_set_conf, DOUT, 0, 0))
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return;
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enp.address = en_d->bEndpointAddress;
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enp.size = en_d->wMaxPacketSize;
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enp.toggle = DATA0;
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packet = kzalloc(enp.size, 0);
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rq = create_request(dev, &enp, DIN, packet, enp.size);
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rq->qnum = 6;
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rq->handler = &mouse_handler;
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u32_t efl = safe_cli();
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list_add_tail(&rq->list, &dev->host->rq_list);
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qh = dev->host->qh[6];
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qh->qelem = rq->td_head->dma;
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mb();
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safe_sti(efl);
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dbgprintf("create_hid_mouse\n");
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}
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